Home / 980,778.86-1,353,588.22-572,982.64

Finding the Fourth Proportional to 980,778.86, 1,353,588.22 and 572,982.64

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Solution

The fourth proportional to 980,778.86, 1,353,588.22 and 572,982.64 is: 790,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,778.86 : 1,353,588.22 = 572,982.64 : x
  2. Step 2: Convert to fraction form
    980,778.86/1,353,588.22 = 572,982.64/x
  3. Step 3: Cross multiply
    980,778.86x = 1,353,588.22 × 572,982.64
  4. Step 4: Simplify right side
    980,778.86x = 775,582,549,100.76
  5. Step 5: Solve for x
    x = 775,582,549,100.76/980,778.86
  6. Step 6: Final answer
    x = 790,782.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.